454  
CDUS41 KLWX 062137  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
535 PM EDT FRI JUL 6 2018  
 
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 6 2018
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1960 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 85 354 PM 102 1977 88 -3 80  
MINIMUM 77 709 AM 45 1979 65 12 71  
AVERAGE 81 76 5 76  
 
PRECIPITATION (IN)  
TODAY T 1.68 2017 0.12 -0.12 1.68  
MONTH TO DATE 0.85 0.73 0.12 3.05  
SINCE JUN 1 5.02 4.71 0.31 4.33  
SINCE JAN 1 25.67 21.53 4.14 23.42  
 
SNOWFALL (IN)  
TODAY 0.0 MM MM 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 5 15 -10 6  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY 16 12 4 11  
MONTH TO DATE 105 67 38 82  
SINCE JUN 1 346 304 42 338  
SINCE JAN 1 538 396 142 475    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION N (360)  
AVERAGE WIND SPEED 6.7  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94 400 AM  
LOWEST 61 400 PM  
AVERAGE 78  
   
......................................................
 
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 88 101 2012  
2010  
1988  
MINIMUM TEMPERATURE (F) 65 47 1970  
 
 
SUNRISE AND SUNSET  
JULY 6 2018..........SUNRISE 551 AM EDT SUNSET 838 PM EDT  
JULY 7 2018..........SUNRISE 551 AM EDT SUNSET 838 PM EDT  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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